// String Number Boolean Undefined Null Symbol BigInt
let str: string = "hello";
const num: number = 123;
const bol: boolean = false;
let und: undefined = undefined;
und = null;
let nu: null = null;
nu = undefined;

let sym: symbol = Symbol("name");
let int1: bigint = 100000n;
let int2: bigint = BigInt(1000);
